Combustion apparatus including an air-fuel premixing chamber

Patent · Tue May 06 00:00:00 EDT 1986

OSTI ID:5718678

Howald, W E

A combustor is described for generating a hot gas stream by the combustion of fuel in a pressurized airstream. The combustor includes: a housing; an arcuate combustor liner mounted within the housing in spaced relation thereto effective to constrain the gas flow to form a generally toroidal-shaped combustion zone; an annular air-fuel premixing chamber defined by a first annular baffle and a second annular baffle disposed radially inwardly thereof, the chamber having an upstream end and opening downstream into the combustion zone through an opening defined by the baffles; the first baffle comprising a stationary member and a sleeve member movable relative to the stationary member, each of the members having a plurality of spaced openings therein angled generally tangentially to the inner surface thereof; the sleeve member being movable between a full open position wherein the openings are aligned, a closed position wherein the openings are offset and a plurality of partially open positions therebetween, thereby controlling the flow of air therethrough; means for injecting fuel into the premixing chamber; means integral with the sleeve member for moving the sleeve member relative to the stationary member.

• Assignee: NOV; NOV-85-013132; EDB-86-120618
• Patent Number(s): US 4586328
• OSTI ID: 5718678
• Resource Relation: Patent File Date: Filed date 11 May 1982
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMBUSTORS
DESIGN
FUEL-AIR RATIO
AIR FLOW
BAFFLES
COMBUSTION CHAMBERS
COMPRESSED AIR
FLUE GAS
FUEL INJECTION SYSTEMS
GAS FLOW
MIXING
ORIFICES
PRESSURIZING
VAPORS
AIR
COMPRESSED GASES
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
FUEL SYSTEMS
GASEOUS WASTES
GASES
OPENINGS
WASTES
421000* - Engineering- Combustion Systems